Preheat the oven to 350 degrees. Follow the package instructions for the sugar cookie mix. Lightly grease a cookie sheet and then press the cookie dough into a rectangular shape that is about 1/8" thick. Press your thumbs into the edges to create a scalloped look. Bake for 8-10 minutes or until the edges begin to brown. Remove from the oven an cool.

While the crust is cooling, mix the cream cheese, yogurt, sugar, lemon juice and lemon rind. Spread over the cooled cookie. Arrange the fruit in an American flag design. Blueberries will form the blue field in the upper left hand corner. Raspberries and/or strawberries will be the horizontal stripes.